Compress PDF
Reduce PDF file size online for free. Compress PDF documents while maintaining quality.
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About Compress PDF
Reduce the file size of your PDF documents with our free online PDF compressor. This tool optimizes PDFs by compressing images and removing unnecessary data while preserving the document quality. Perfect for emailing large PDFs, uploading to websites, or saving storage space. The compression happens entirely in your browser, ensuring your documents never leave your computer.
Common Use Cases
Email Attachments
Reduce PDF size to meet email attachment limits (usually 10-25MB).
Website Uploads
Compress PDFs before uploading to websites for faster downloads.
Cloud Storage
Save cloud storage space by compressing large PDF document collections.
Mobile Sharing
Smaller PDFs transfer faster via messaging apps and mobile data.
How to Use Compress PDF
- 1
Upload your PDF file using the file selector or drag and drop.
- 2
Select your compression level: Low, Medium, or High.
- 3
The tool will automatically compress images and optimize the PDF structure.
- 4
Review the file size reduction percentage displayed.
- 5
Download the compressed PDF file.
Frequently asked questions
Tips for Best Results
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High compression works best for image-heavy PDFs like brochures and catalogs.
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Text-only PDFs may not compress significantly — they are already fairly optimized.
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Always compare the compressed version to the original to ensure readability.
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If quality suffers, try Medium compression instead of High.
Why Use Our Compress PDF؟
Significantly reduce PDF size
Maintain document quality
Image optimization inside PDFs
Fast compression
Private browser processing
Unlimited free use